So I pulled the plug on the finishing shortly after my last post. I didn't bother knocking down the last coat of poly and hitting it once more with the fine bristle brush I was originally planning to. My reasoning was simple. My rails are not smooth and have a heavy amount of texture because of the oak grain structure. This natural texture kinda makes the whole chase for a perfect finish a bit moot I think. Well at least I didn't see the point anyways.
So what that earth shattering revelation allowed me to do, was move on to installing the facings.
Walking into this scope of the project, I really thought the heavy lifting was done with the pockets so I didn't give it much thought. In hindsight I did make at least one blunder that I'm aware of. It won't effect anything in terms of playability, but it's going to annoy me.
Step one was to glue/staple the facings into place:
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The glued face was roughed up with some sandpaper. Nothing overly intense. Just enough to knock off the sheen. Figure this would provide the rubber cement some more holding power. I have been lead to believe that most cements in this specific app don't have the sheer strength to hold the facing over time. The hope is that the rougher surface and staples will help prevent any potential shifting. I have certainly seen tables with a shifted back facing. I don't know the installer's methods so I can't comment on the cause of the haphazard results.
Once the facings were on and stapled I also added some tape to keep some pressure on the assembly.
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That tape wasn't very tight. I didn't want to overly flex the facing material and end up peeling away the center. It's just there to be more than nothing...lol
I let the rails sit for a couple of days to allow the cement to really set up. <-That's code for I didn't have time to get right back to it
When it came time to shape the facings, I thought I'd follow a two step process. First was to rough cut them down with a blade and then use some level of powertool to sand them to a finished state. Truth be told. I was terrified of using a powered method of sanding to get the facings to a flush state with the cushion. One YT poster actually uses a 4" grinder with a sanding disk. He claims great results. However I wasn't convinced. I've seen a couple of pros on here recommend a small hand held belt sander. I'm sure that would have been fine, but I wasn't in a mood to source and buy that tool for a one off project.
In the end I opted to simply use a blade to get 95% of the way there, and then some 320g paper with a block to finish it off.
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I just used a fresh blade and let the cushion be the guide, making sure to never dive down. The second pic above shows the result prior to sanding. You can clearly see the "saw" marks I made as I worked through the rubber.
Once I got a hang of using the blade. It was more a process of smoothing out the facing with the sanding block then developing the needed shape.
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As far as the shaping of the facings is concerned. I'm quite happy with the results.
Now my disappointment with the facings can be seen in the last pic. I'll post it again and highlight the problem.
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So what neglected to do was account for enough overhang beyond the feather strip groove. The initial plan was to trim the facing off following the back of the feather strip groove. This would provide a very clean flush finish to the pocket liner. As it stands, all the facings are short in this regard. ...Now, the pocket liners will still be trimmed to some extent, so I'm sure I could do something creative here to minimize gaps. However I doubt I'll entertain that, as it really is inconsequential in the minor scheme of things.
I can't readily replace the facings. I don't have enough raw material left to replace all of the them. Live and learn I suppose. Next time I have to replace cushions I will know better.